Twin-tire-wheel rim.



A Al REMINGTON & J. G. SWEENEY.

YTWIN TIRE WHEEL RIM.. PPLICATION FILED IAN. 26. |915.

1,174,350. Patented Mar. 7,1916.

jy vf@ ARNOLD REMINGTON AND JOSEPH ('zrlilOIELGE SWEENEY, OF BIRMINGHAM,

ENGLAND.

TWIN-TIRE-WHEEL RIM.

Specification of Letters Patent.

Patented Mar. 7, 1916.

Application led January 26, 1915. Serial No. 4,496.

To all whom 'it may concern:

Be it known that we, ALFRED ARNOLD REMINGTON and JOSEPH GEORGE SWEENEY, both subjects of the King of Great Britain, and both residing 'at Birmingham, in ythe county of. Warwick, England, have invented certain new and useful Improvements in Twin-Tire-Wheel Rims, whereo the following isa specification. y

This invention has for its object an improved construction Of rim for a twin tire wheel.

A wheel rim constructed according -to this invention is illustrated, in transverse section by the drawing herewith, which shows also two pneumatic tire covers .in place therein.

A is the bed of the rim which is of the full width to receive both the tires and may beconveniently rolled of uniformthickness throughout. An Outward bulge a is-formed during the process of rolling around the 'middle of the bed A, and the periphery of this bulge is cylindrical and the sides thereof curve into the cylindrical Ortions a3 of the bed. A metal ring D, whlch may also be conveniently rolled of uniform thickness throughout, is riveted around the cylindrical portion of the bulge a2 of the bed, and this ring is formed with sideway extensions d3 which are of' larger diameter than the middle portion of the ring and lea-vel spaces between their inner surfaces and the portions a* of the bed which curve out at the sides of thev central cylindrical p portion a2, Vthese spaces receiving, respectively, the inner thickened or beaded edges of the tire covers or casings B.- Within each edge of the bed A is formed a groove a tO receive the flange c of a split ring C which retains the nuter bead of one of the tire covers B. Either tire may be removed independently Of-the other by first removing the corresponding ring C from its groove a. The upper edge of the Outer side of each groove a' does not project beyond the cylindrical surface Of the bed, and preferably, does not extend quite So far, thereby facilitating putting the tires in place and removing them.

We claim as our invention:

A twin tire wheel rim comprising a bed of the width required for both tires, said bed being bulged outwardly at its center and provided with inward grooves at its outer edges, a ring fixed to said outwardly ALFRED ARNOLD i REMINGTON. JOSEPH GEORGE SWEENEY.

Witnesses:

ERNEST HARKER, ROBERT G. Gnovns.

`bulged portion and provided with lateral 

